package main

import (
  "fmt"
)

func main() {
  //var a int
  //var b bool
  //var c string
  //var d float32

  var (
    a int
    b bool
    c string
    d float32
  )

  fmt.Printf("a=%d b=%t c=%s d=%f\n\n", a, b, c, d)//a=0 b=false c= d=0.000000

  a=10
  b=true
  c="hello"
  d=10.8

  fmt.Printf("a=%d b=%t c=%s d=%f\n\n",a,b,c,d) //a=10 b=true c=hello d=10.800000
}
